When I received this plant I was hoping it would be Amorphophallus konjac but it now looks like it isn’t as the flower occurs at the same time as the leaf whereas konjac doesn’t. The flower is also longer and has more of a drape to it.
EDIT: Identified as Dracunculus vulgaris, thanks so much everyone.
belongs in the aeracae family, they contain calcium oxalate crystal, that causes the poisonious effect. same family as the taro, dumbcane, calla lily, peace lily.
Thanks to you as well!